Manufacturer of ASTM B150 C63000 Stud Bolt
We are speciallized in manufacturing precision-machined C63000 (UNS C63000) aluminum bronze stud bolts, designed for high-performance, corrosion-resistant fastening in marine, offshore, chemical, and defense applications.
Made from premium-grade nickel-aluminum bronze, our C63000 stud bolts comply fully with ASTM B150 standards and deliver excellent mechanical strength and resistance to seawater, chlorides, and extreme temperatures.
What is ASTM B150 C63000?
ASTM B150 C63000 is a specification for nickel-aluminum bronze alloys. C63000 (also known as AMS 4640) contains approximately 10% aluminum, 5% nickel, and 3% iron, offering exceptional strength, wear resistance, and corrosion resistance—especially in saltwater and acidic environments.
ASTM B150 is a standard material specification for rod, bar, and shapes for Copper Alloys including Nickel Aluminium Bronze Grade UNS C63000, Which has an excellent corrosion resistance and is an ideal choice for valve and pump components, marine hardware and fasteners.
C63000 – AMS 4640 – ASTM B150 – Aluminum Bronze, is mostly used due high strength and excellent corrosion resistance in combination with wear, shock and abrasion resistance.
It has excellent mechanical properties in cryogenic environment.
Material Standard & Grade
- Material: Nickel Aluminum Bronze
- UNS Number: C63000
- Standard: ASTM B150
- Equivalent Standards: AMS 4640
Composition of Aluminium bronze C63000
| B150 C63000 | ||
| Chemical composition (%) | Copper (Cu) | Remainder |
| Aluminum (Al) | 9.0~11.0 | |
| Nickel (Ni) | 4.0~5.5 | |
| Iron (Fe) | 2.0~4.0 | |
| Manganese (Mn) | 1.50 max | |
| Silicon (Si) | 0.25 max | |
| Tin (Sn) | 0.20 max | |
| Zinc (Zn) | 0.30 max | |
Mechnical property
| B150 C63000 HR50 Standard Strength Rod | |||
| Diameter (mm) | Tensile strength (MPa) | Yield strength (MPa) | Elongation (%) |
| 12≤d≤25 | 690 min | 345 min | 5 min |
| 25<d≤50 | 620 min | 310 min | 6 min |
| 50<d≤80 | 585 min | 295 min | 10 min |
C63000 Stud Bolt Specifications
- Thread Type: UNC, UNF, Metric (ISO)
- Thread Standard: ASME B1.1 (UNC/UNF), ASME B1.13M (Metric)
- Bolt Dimensions: ASME B18.2.1 / B18.31.2
- Nut Compatibility: ASTM B150 C63000
- Sizes: M6 to M64 | ¼” to 2-½” diameter
- Threads: UNC / UNF / Metric Coarse & Fine
Why C63000 Fasteners?
B150 C63000 is a Nickel Aluminum Bronze alloy with excellent mechanical strength, corrosion resistance, and wear resistance, making it suitable for high-performance applications such as marine, aerospace, and industrial fasteners.
Applications of C63000 Bolts
- Marine and offshore platforms
- Aerospace components
- Chemical processing plants
- High-strength industrial fasteners
- Valve, pump, and flange connections
As a trusted manufacturer and exporter of ASTM B150 C63000 stud bolts, we deliver corrosion-resistant fastening solutions for critical applications. Contact us today


